Omega RVB-2 Owner's manual

Brand: Omega

Model: RVB-2

Category: Measuring, testing & control

Type: Owner's manual

e-mail: [email protected]

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User’s Guide

RVB-2

Rotational Viscometer

MADE IN CHINA

Servicing North America:

U.S.A.: Omega Engineering, Inc., One Omega Drive, P.O. Box 4047

ISO 9001 Certified Stamford, CT 06907-0047 USA

Toll Free: 1-800-826-6342 TEL: (203) 359-1660

FAX: (203) 359-7700 e-mail: [email protected]

Canada: 976 Bergar

Laval (Quebec), H7L 5A1 Canada

Toll-Free: 1-800-826-6342 TEL: (514) 856-6928

FAX: (514) 856-6886 e-mail: [email protected]

For immediate technical or application assistance:

U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA

Customer Service: 1-800-622-2378/1-800-622-BEST

Engineering Service: 1-800-872-9436/1-800-USA-WHEN

Mexico/ TEL: 001 (203) 359-1660 FAX: 001 (203) 359-7700

Latin America e-mail: [email protected]

Servicing Asia:

China: 1698 Yi Shan Road, Unit 102,

Min Hang District, Shanghai, China

Hotline: 800 819 0559/400 619 0559 e-mail: [email protected]

Servicing Europe:

Benelux: Toll-Free: 0800 099 3344 TEL: +31 20 347 21 21

FAX: +31 20 643 46 43 e-mail: [email protected]

Czech Republic: Frystatska 184

733 01 Karviná, Czech Republic

Toll-Free: 0800-1-66342 TEL: +420-59-6311899

FAX: +420-59-6311114 e-mail: [email protected]

France: Toll-Free: 0805 541038 TEL: 01 57 32 48 17

FAX: 01 57 32 48 18 e-mail: [email protected]

Germany/ Austria: Daimlerstrasse 26

D-75392 Deckenpfronn, Germany

Toll-Free: 0800 8266342 TEL: +49 (0) 7056 9398-0

FAX: +49 (0) 7056 9398-29 e-mail: [email protected]

United Kingdom: OMEGA Engineering Ltd.

ISO 9001 Certified One Omega Drive, River Bend Technology Centre, Northbank

Irlam, Manchester M44 5BD United Kingdom

Toll-Free: 0800-488-488 TEL: +44 (0) 161 777-6611

FAX: +44 (0) 161 777-6622 e-mail: [email protected]

OMEGAnet

Online Service Internet e-mail

omega.com info@omega.com

It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI

regulations that apply. OMEGA is constantly pursuing certification of its products to the European New

Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any

errors it contains, and reserves the right to alter specifications without notice.

WARNING: These products are not designed for use in, and should not be used for, human applications.

RVB-2

Rotational Viscometer

Operation Manual

Content

I. Summary………………………………………………………..2

II. Main technical specification……………………………………2

III. Working principle………………………………………………2

IV. Instrument structure and installation……………………………3

V. Operation procedure…………………………………………….6

VI. Notes…………………………………………………………8

VII. Full set and technical documents ................................................... 10

The instrument is a precise instrument, please read the Operator’s Manual

before using.

I. Summary

The RVB-2 Rotation Viscometer uses advanced mechanical design technology,

manufacturing techniques and compute controlling technology, enabling it to collect

data accurately. The white background light and ultra-bright LCD make the RVB-2

display clear and easy to read. Equipped with a special print interface, the RVB-2 can

print out measurement data through a local printer.

The RVB-2 is a highly sensitive, reliable, and convenient instrument. The

RVB-2 is used to determine absolute viscosity of Newton liquids and apparent

viscosity of Non-Newton liquids. It is widely used to determine the viscosity of

liquids such as greases, oil paints, plastic, pharmaceutials, dopes, adhesive solvents

and washing solvents.

II. Main technical specification

1. Measurement range: 10󺔯2000000 cps

2. Rotor specification: No.1󺔯4, total four types of rotors

3. Rotation speed of rotor: 0.3, 0.6, 1.5, 3, 6, 12, 30, 60 r/min; total 8 grades

4. Measurement error: ±3% (F·S)

5. Power supply: AC 120 V±10%, 50 Hz±10%, 230V ±10%, 60

6. Ambient temperature: Temperature 5°󺔯35°C (41°󺔯95°F)

7. Relative humidity: not more than 80%

III. Working principle

The RVB-2 is a rotation Viscometer. The motor is used to drive and regulate the

constant speed of the rotor. When rotated the liquid will produce a viscidity moment.

The higher the viscosity of liquids, the higher the viscidity moment and the lower the

viscosity of liquids, the lower the viscidity moment. The viscidity moment is

determined by a sensor, and the viscosity of measured liquids is calculated by the

processor.

The RVB-2 can carry out data processing for the data determined by the sensor,

and display the set rotor number, rotation speed, viscosity, and full scale percent of

measured liquids.

The instrument has 4 rotors (1, 2, 3 and 4) and 8 grades of rotation speed (0.3,

0.6, 1.5, 3, 6, 12, 30 and 60 r/min), offering 32 different combinations for measuring

the viscosity of liquids within the measurement range.

IV. Instrument structure and installation

(I) Structure

The structure of the instrument is shown as Figure 1.

(1) Water level bubble on the head of the viscometer (2) LCD (3) Outer shield

(4) Protection holder of rotor (5) Pedestal of main unit (6) Micro-printer

(7) Head of viscometer (8) Operation keyboard (9) Joint of rotor (10) Rotor

(11) Level regulation knob on the pedestal of main unit

(II) Installation

1. Check power supply to ensure it meets local regulations.

2. The instrument should be installed on a workbench without corrosive gas,

electromagnet interference or vibration.

3. Screw the toothed vertical shaft in the screw hole on the pedestal of the main

unit. The toothed surface should face to the front of the pedestal. Secure nut onto

vertical shaft using a wrench, to avoid any rotation of the vertical shaft. (Figure 2)

4. Install the positioning knob for the viscometer head on the vertical shaft

(Figure 2). Rotate the knob to move the viscometer head up and down. If the knob is

too tight or too loose, adjust the bolt on the lower surface of the clamps. When

moving the head of viscometer to a proper position, screw the dead bolt on the back

of knobs to fasten the head of viscometer.

5. Remove the locknut from the yellow protection cap and remove the protection

cap.

6. Level the viscometer head on the pedestal using the knobs.

7. Connect the power supply and printer shown as Figure 3.

Note: the “PC interface” in the figure 3 is not used at present.

Figure 2

Figure 3

Viscometer head

Level adjust bolt

Water level bubble

Dead bolt

Postioning knob

Adjusting bolt

Hexagon nut

Toothed vertical shaft

Clamps

Pedestal

V. Operation procedure

1. Prepare the measured sample. Place the liquid in a beaker or container,

whose diameter is not less than 70 mm (2.76 in), and height is not less than 125 mm

(5 in).

2. Correctly control the temperature of measured liquids.

3. Adjust the level of the instrument and check the bubble of the water level

meter to ensure the viscometer is level.

4. Choose a suitable rotor and rotation speed according to the estimated viscosity

of the liquids.

5. Adjust the up and down knobs slowly to adjust the height of rotor in the

measured liquid until the liquid surface sign on the rotor is equal with the liquid

surface.

6. Keyboard operation and indication interface

(1) The keyboard of the instrument is shown as figure 4.

Figure 4 Figure 5

(2) Turn on the power supply switch on the back of the instrument and enter into

the user choice mode as shown in figure 5. The cursor is at the “1#”. Press “right

move” button to choose the required rotor.

(3) Press “down” button to switch to rotation speed item. The cursor is at the

item 0.3 r/min shown as in the figure5.

Press “right move” button to choose required speed. There are 8 grades of

rotation speeds, 0.3, 0.6, 1.5, 3, 6, 12, 30 and 60 r/min.

(4) Press “ok” button after choosing the suitable rotor and rotation speed. The

Reset ok

Rotor: 1#

Rotation speed: 0.3 r/min

Output Communication

Clock Display

rotor will begin to rotate and the instrument will begin to measure. The display is

shown as figure 6.

Figure 6

In figure 6, the unit of rotation speed is RPM. The unit of viscosity is mPa·s (cps).

The vertical bar on the right side indicates the course of sampling. The percent ratio is

the ratio between the measured viscosity and the full scale.

(5) In figure 5, when adjusting the cursor to the “output” position, press the

“right move” button to choose “communication” and “print”. Press “ok” button at the

“print” position, and it will print the test data through a printer. The function of

“communication” is not used.

(6) In figure 5, when moving the cursor to the “clock” position, press “right

move” button, and choose “indicate” and “modify”. If the “ok” button is pressed at

“display” position, it will indicate the hour: minute: second –year-month-day at

present. If the “ok” button is pressed at “modify” position, the time and data can be

modified.

(7) Press “reset” button and the instrument will stop measuring. Press the “ok”

button, to resume measuring the viscosity of sample using the previous rotor number

and rotation speed.

7. Operation instruction

(1) Estimate the viscosity range of measured liquids and choose a suitable rotor

and rotation speed as per the full scale sheet shown in table 1.

(2) If the viscosity of the measured liquid can not be estimated, take the viscosity

Rotor 1 #

Rotation speed 0.3 RPM

Viscosity ××× mPa·s

Percent ratio ×××.×%

of measured liquids as a high viscosity. Then choose a rotor from small to large (the

number is from high to low) and a rotation speed from slow to fast. In principle,

choose a small rotor (high rotor number) and slow rotation speed to determine high

viscosity liquids, and choose a large rotor (low rotor number) and rapid rotation speed

to determine low viscosity liquids.

(3) In order to ensure the measurement precision, the full scale percent should be

at 10%󺔯100% during measurement. If the displayed value flitters, the reading is too

large or too small, and the scale of the rotor should be adjusted.

(4) Press “reset” button at any time, the program will revert to the initial state,

and the operation interface will revert to user choosing state.

8. Full scale sheet

rotor

Full scale

mPa·s

r/min

Rotation speed

100

500

2000

10000

200

1000

4000

20000

500

2500

10000

50000

1000

5000

20000

100000

2000

10000

40000

200000

1.5

4000

20000

80000

400000

0.6

10000

50000

200000

1000000

0.3

20000

100000

400000

2000000

VI. Notes

1. The power supply should be within the error limit of the voltage and

frequency, or it will affect the test precision.

2. Please assemble and disassemble the rotor carefully. Remember to raise the

connection bolt at the lower section of the instrument prior to assembly and

disassembly. To avoid bending the rotor, do not handle it with excessive force or push

the rotor transversely. Keep the connection surface and screw thread of connection

bolt, and rotor clean, or they will affect installation, and stability of rotor when

rotating.

4. Do not let the rotor rotate without any liquids to avoid destroying the axle

point and bearing.

5. Please clean the rotor immediately after using. Disassemble the rotor to clean

it. Do not clean the rotor when still installed in the instrument. The rotor should be

stored in the storage case after cleaning.

6. Please cover the yellow protection cap and raise the connection bolt, and

screw on the dead bolt on the protection cap tightly during carrying or transporting the

instrument.

Note: The protection cap should be disassembled before connecting to power

supply to avoid destroying the instrument.

7. Do not disassemble the instrument or replace the accessory of the instrument.

Do not add lubricating oil.

8. Most suspending liquids, emulsion, high polymer and other high viscosity

liquids are “Non-Newton liquid”. The apparent viscosity of these mediums always

changes following the change of shear speed and time. When determining the

viscosity of sample using a different rotor, rotation speed and at different times, it is

normal that the viscosity will be different.

9. Do not lay the instrument in its side or transversely.

10. Perform the tests using the following guidelines:

A. Control the temperature of measured liquids.

Note: you can purchase the circulation constant temperature water bath and a

special two layer sample cup if necessary.

B. Submerge the rotor in the measured liquids for a long time and keep the

temperature of the liquid constant to let the temperature of the rotor and measured

liquid equal.

C. Ensure the uniformity of measured liquids.

D. Place the rotor in the center of the container during measurement.

E. Carry out measurement using the protection holder.

F. Keep the rotor clean.

G. Prevent any bubbles from adhering to the rotor when immersed in the

measured liquids.

VII. Full set and technical documents

1. Full set

Name

Unit

Quantity

Main unit of NDJ-1B Digital Rotation Viscometer

Set

No.1󺔯4 rotor

Piece

1 for each

Protection sleeve

Piece

Standing pole

Piece

Pedestal (including three pieces of level adjust bolts)

Pair

Rotor protection holder

Piece

Power supply wire (120 V 6 A)

Piece

Printer (including connection cable, power supply wire)

Set

Aluminum case (it contains main unit, rotor and rotor

protection holder, etc)

Piece

2. Optional parts

(1) HWY-10 Circulation constant temperature water bath

(2) Special double layers sample cup

NOTES:

WARRANTY/ DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a

period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month

grace period to the normal one (1) year product warranty to cover handling and shipping time. This

ensures that OMEGA’s customers receive maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service

Department will issue an Authorized Return (AR) number immediately upon phone or written request.

Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no

charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser,

including but not limited to mishandling, improper interfacing, operation outside of design limits,

improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of

having been tampered with or shows evidence of having been damaged as a result of excessive corrosion;

or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating

conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not

limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However,

OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any

damages that result from the use of its products in accordance with information provided by

OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by it will be

as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR

REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT THAT OF TITLE,

AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND

FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF

LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of

OMEGA with respect to this order, whether based on contract, warranty, negligence,

indemnification, strict liability or otherwise, shall not exceed the purchase price of the

component upon which liability is based. In no event shall OMEGA be liable for

consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic

Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical

applications or used on humans. Should any Product(s) be used in or with any nuclear installation or

activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility

as set forth in our basic WARRANTY/ DISCLAIMER language, and, additionally, purchaser will indemnify

OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the

Product(s) in such a manner.

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE

RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN

(AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID

PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return

package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent

breakage in transit.

FOR WARRANTY

RETURNS, please have the

following information available BEFORE

contacting OMEGA:

1. Purchase Order number under which the product

was PURCHASED,

2. Model and serial number of the product under

warranty, and

3. Repair instructions and/or specific problems

relative to the product.

FOR NON-WARRANTY REPAIRS,

consult OMEGA

for current repair charges. Have the following

information available BEFORE contacting OMEGA:

1. Purchase Order number to cover the COST

of the repair,

2. Model and serial number of the product, and

3. Repair instructions and/or specific problems

relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords

our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.

reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the

prior written consent of OMEGA ENGINEERING, INC.

M5240/0113

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Process Measurement and Control?

OMEGA…Of Course!

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Omega RVB-2 Owner's manual

Brand: Omega

Model: RVB-2

Category: Measuring, testing & control

Type: Owner's manual

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Omega RVB-2 Owner's manual

Omega RVB-2 Owner's manual

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